The system sounds great, just as advertised. The installation was smooth the only issue was two of the female end where the pipes join were slightly bent and not opened up enough to fit the pieces together, wish I would have pre-put them all together before getting each piece in place under the truck. I had to bend the pipes out enough to wedge the male peice in.. kind of a pain but it's fine. Would have been nice to get a sticker in the box too. Would be a five start if it wernt for the bent pipe couplers